Securities and Exchange Commission
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Securities and Exchange Commission [Release No. 34-106193; File No. SR-CMESC-2026-007] August 26, 2026. Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (the “Act”)  [ 1 ] and Rule 19b-4 thereunder, [ 2 ] notice is hereby given that on August 18, 2026, CME Securities Clearing Inc. (“CMESC”) filed with the Securities and Exchange Commission (“SEC” or “Commission”) the proposed rule change described in Items I, II, and III below, which Items have been substantially prepared by CMESC. CMESC filed the proposed rule change pursuant to Section 19(b)(2) of the Act. [ 3 ] The Commission is publishing this notice to solicit comments on the proposed rule change from interested persons. I. CMESC's Statement of the Terms and Substance of the Proposed Rule Change The proposed rule change of CME Securities Clearing Inc. (“CMESC”) consists of three parts: (i) proposed modifications to the CMESC Rulebook (the “Rules”)  [ 4 ] relating to cross-margining arrangements; (ii) modifications to certain CMESC clearing risk management policies to cover cross-margining; and (iii) proposed agreements to establish an initial cross-margining arrangement in accordance with and subject to the Rules and clearing risk management policies. The proposed modifications to the Rules set forth a framework under which CMESC may establish a cross-margining arrangement with a clearing organization registered with …
Citation: 91 FR 55940
